














#import "XMGlobalVariables.h"


@implementation XMGlobalVariables

+ (XMGlobalVariables *)sharedInstance {
    static XMGlobalVariables *globalVariables = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        globalVariables = [[self alloc] init];
    });
    return globalVariables;
}

- (instancetype)init {
    self = [super init];
    if (self) {
        _chatBgImgDic = [NSMutableDictionary dictionary];
    }
    return self;
}

@end
